As metal core pcb means the base material for pcb is metal,and nowadays the most common metal used are aluminum and copper. Aluminum PCB has good heat transer and dissipation ablility,but yet relatively cheaper.It is generally including single layer,double layer and multi layer.
On the other hand,copper has even better performance but relatively more expensive.Thereforce, majority of MCPCB are made of aluminum.
As for Metal core pcb,it is a copper substrate insulated layer.Also ,it is called copper substract pcb,copper based pcb.It is singer layer and the thickness is 3mm.The copper thickness is 1 Oz.The plating process is immersion gold.It is kind of power LED MCPCB.
